CubeMX Configuration for a Given MCU

Below is an example of configuring the CAN interface in CubeMX for a given STM32 microcontroller. The settings may vary depending on the requirements of a specific application.

H7

CubeMX Settings

The H7 processor family does not support the CAN interface. Instead, please see the FDCAN Receive block.

F4

CubeMX Settings

No.	Name	Path	Setting	Description
1	CAN Mode	Pinout & Configuration > Connectivity > CAN* > Mode	`Activated`	The CAN peripheral interface should be enabled.
2	CAN Clock	Clock Configuration	Value depends on the target CAN bus frequency	Setting the clock source for the CAN interface. This value depends on the target CAN bus frequency and the system clock configuration. For the F4 processor family, you need to adjust the APB1 peripheral clock.
3	CAN Prescaler	Pinout & Configuration > Connectivity > CAN* > Parameter Settings > Prescaler	Value depends on the target CAN bus frequency	Setting the prescaler for the CAN bus. This value depends on the target CAN bus frequency and the system clock configuration.
4	CAN* RX0 interrupt	Pinout & Configuration > Connectivity > CAN* > NVIC Settings > CAN* RX0 interrupt	`Enabled`	Enables the interrupt for message reception into the FIFO0 buffer.
5	CAN* RX1 interrupt	Pinout & Configuration > Connectivity > CAN* > NVIC Settings > CAN* RX1 interrupt	`Enabled`	Enables the interrupt for message reception into the FIFO1 buffer.
6	Maximum output speed	Pinout & Configuration > Connectivity > I2C* > GPIO Settings > click on the pin and enter the configuration window > Maximum output speed	`Very High`	Setting the pin operating speed.